Abstract

The lifetimes of the 3p⁵4p ³D₁, ³D₂, ³D₃, and ¹D₂ levels of singly ionized potassium, K ii, have been measured using the beam-laser method (7.0 ± 0.3, 7.2 ± 0.3, 6.89 ± 0.15, and 7.7 ± 0.4 nsec, respectively). The lifetimes are 10 to 25% shorter than previous beam-foil lifetimes. Improved transition probabilities are recommended for some transitions in K ii.

© 1988 Optical Society of America

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